Senate Foreign Relations Committee Chairman Sen. Bob Corker (L) (R-TN) shakes hands with ranking member Sen. Ben Cardin (R) (D-MD) during a committee markup meeting April 14, 2015 in Washington, DC. A bipartisan compromise reached by Corker and Cardin would create a review period that is shorter than originally proposed for a final nuclear deal with Iran and creates compromise language on the removal of sanctions contingent on Iran ceasing support for terrorism.

Senate Foreign Relations Committee Chairman Sen. Bob Corker (L) (R-TN) shakes hands with ranking member Sen. Ben Cardin (R) (D-MD) during a committee markup meeting April 14, 2015 in Washington, DC. A bipartisan compromise reached by Corker and Cardin would create a review period that is shorter than originally proposed for a final nuclear deal with Iran and creates compromise language on the removal of sanctions contingent on Iran ceasing support for terrorism.

Senate Republicans Address The Media After Weekly Policy Luncheons

Chip Somodevilla

Sen. Bob Corker (R-TN) talks with reporters before attending the weekly Republican Senate caucus policy luncheon at the U.S. Capitol November 5, 2013 in Washington, DC. The Senate overcame a procedural hurdle Monday to move closer to passage of the Employment Non-Discrimination Act of 2013, which would outlaw workplace discrimination based on sexual orientation and gender identity.

Sen. Bob Corker (R-TN) talks with reporters before attending the weekly Republican Senate caucus policy luncheon at the U.S. Capitol November 5, 2013 in Washington, DC. The Senate overcame a procedural hurdle Monday to move closer to passage of the Employment Non-Discrimination Act of 2013, which would outlaw workplace discrimination based on sexual orientation and gender identity.

Senators Hold Closed-Door Meetings On Syria

Chip Somodevilla

Senate Foreign Relations Committee ranking member Sen. Bob Corker (R-TN) (C) talks to reporters before heading into a members-only classified briefing about Syria at the U.S. Capitol September 3, 2013 in Washington, DC. The Foreign Relations Committee will hear testimony today from Secretary of State John Kerry, Secretary of Defense Chuck Hagel and Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey.

Senate Foreign Relations Committee ranking member Sen. Bob Corker (R-TN) (C) talks to reporters before heading into a members-only classified briefing about Syria at the U.S. Capitol September 3, 2013 in Washington, DC. The Foreign Relations Committee will hear testimony today from Secretary of State John Kerry, Secretary of Defense Chuck Hagel and Chairman of the Joint Chiefs of Staff Gen. Martin Dempsey.

Government Shutdown Enters Second Week

Mark Wilson

Sen. Tom Coburn (R-OK) (L) and Sen. Bob Corker (R-TN) do television interviews at the U.S. Capitol, October 9, 2013 in Washington, DC. The U.S. government shutdown is entering its ninth day as the U.S. Senate and House of Representatives remain gridlocked on funding the federal government.

Sen. Tom Coburn (R-OK) (L) and Sen. Bob Corker (R-TN) do television interviews at the U.S. Capitol, October 9, 2013 in Washington, DC. The U.S. government shutdown is entering its ninth day as the U.S. Senate and House of Representatives remain gridlocked on funding the federal government.

Senate Debates Immigration Reform Bill

Alex Wong

Sen. Bob Corker (R-TN) takes an elevator as he leaves after a vote on the Senate floor June 24, 2013 on Capitol Hill in Washington, DC. The Senate had passed a cloture vote to end the debate on immigration reform which has paved the way for a vote on the final passage of the legislation.

Sen. Bob Corker (R-TN) takes an elevator as he leaves after a vote on the Senate floor June 24, 2013 on Capitol Hill in Washington, DC. The Senate had passed a cloture vote to end the debate on immigration reform which has paved the way for a vote on the final passage of the legislation.

Barack Obama Plays Golf with Senators

Pool

U.S. President Barack Obama (C) looks on as U.S. Sen. Bob Corker (R-TN) (R), and U.S. Sen. Saxby Chambliss (R-GA) mark their balls May 6, 2013 at Joint Base Andrews, Maryland. Obama played with U.S. Sen. Bob Corker (R-TN), and U.S. Sen. Saxby Chambliss (R-GA) and U.S. Sen. Mark Udall (D-CO) and planned to to discuss 'a range of issues' with his Republican playing partners, seeking 'common ground.'

U.S. President Barack Obama (C) looks on as U.S. Sen. Bob Corker (R-TN) (R), and U.S. Sen. Saxby Chambliss (R-GA) mark their balls May 6, 2013 at Joint Base Andrews, Maryland. Obama played with U.S. Sen. Bob Corker (R-TN), and U.S. Sen. Saxby Chambliss (R-GA) and U.S. Sen. Mark Udall (D-CO) and planned to to discuss 'a range of issues' with his Republican playing partners, seeking 'common ground.'

Congress Returns To Work As Fiscal Cliff Deadline Looms

Drew Angerer

U.S. Senators Lamar Alexander (R-TN) and Bob Corker (R-TN) hold a news conference about the 'Fiscal Cliff' on Capitol Hill December 28, 2012 in Washington, DC. Senators were back on Capitol Hill on Friday to try to deal with the 'Fiscal Cliff' before the year-end deadline.

U.S. Senators Lamar Alexander (R-TN) and Bob Corker (R-TN) hold a news conference about the 'Fiscal Cliff' on Capitol Hill December 28, 2012 in Washington, DC. Senators were back on Capitol Hill on Friday to try to deal with the 'Fiscal Cliff' before the year-end deadline.

Senate Holds Hearing On 9/11 Attacks On US Consulate In Benghazi

Drew Angerer

Sen. James Risch (R-ID), Sen. Bob Corker (R-TN), Sen. Richard Lugar (R-IN) and Committee Chairman Sen. John Kerry (D-MA) listen to testimony during the Senate Foreign Relations Committee hearing on the September 11th attacks on the U.S. Consulate in Benghazi, on Capitol Hill, December 20, 2012 in Washington, DC. Secretary of State Hillary Clinton had planned to testify at the hearing, but could not attend due to an illness.

Sen. James Risch (R-ID), Sen. Bob Corker (R-TN), Sen. Richard Lugar (R-IN) and Committee Chairman Sen. John Kerry (D-MA) listen to testimony during the Senate Foreign Relations Committee hearing on the September 11th attacks on the U.S. Consulate in Benghazi, on Capitol Hill, December 20, 2012 in Washington, DC. Secretary of State Hillary Clinton had planned to testify at the hearing, but could not attend due to an illness.

John Kerry Meets With NATO Secretary-General

Alex Wong

Secretary General Anders Fogh Rasmussen (3rd L) speaks to the media as U.S. Sen. John Kerry (D-MA) (R), Sen. Bob Corker (R-TN) (L), and Sen. Tom Udall (D-NM) (2nd L) look on prior to a meeting May 9, 2012 on Capitol Hill in Washington, DC. Rasmussen will meet with U.S. President Barack Obama in the Oval Office later the day to discuss final preparations for the NATO Summit in Chicago in May, 2012.

Secretary General Anders Fogh Rasmussen (3rd L) speaks to the media as U.S. Sen. John Kerry (D-MA) (R), Sen. Bob Corker (R-TN) (L), and Sen. Tom Udall (D-NM) (2nd L) look on prior to a meeting May 9, 2012 on Capitol Hill in Washington, DC. Rasmussen will meet with U.S. President Barack Obama in the Oval Office later the day to discuss final preparations for the NATO Summit in Chicago in May, 2012.

U.S. Sen. Bob Corker (R-TN) and Sen. Kay Bailey Hutchison (R-TX) arrive on Capitol Hill for a postponed vote on the debt ceiling on July 31, 2011 in Washington, DC. As the United States approaches the possibility of a default, the congressional leaders and the White House try to reach agreement on measures to lift the debt ceiling to address the deficits.

U.S. Sen. Bob Corker (R-TN) and Sen. Kay Bailey Hutchison (R-TX) arrive on Capitol Hill for a postponed vote on the debt ceiling on July 31, 2011 in Washington, DC. As the United States approaches the possibility of a default, the congressional leaders and the White House try to reach agreement on measures to lift the debt ceiling to address the deficits.

Ryan Crocker Attends Confirmation Hearing To Be Ambassador To Afghanistan

Alex Wong

Sen. Bob Corker (R-TN) (L) listens to Sen. Jim Webb (D-VA) during a confirmation hearing before the Senate Foreign Relations Committee for Ambassador Ryan Crocker June 8, 2011 on Capitol Hill in Washington, DC. Crocker, who was ambassador to Iraq from 2007 to 2009, will become ambassador to Afghanistan if confirmed.

Sen. Bob Corker (R-TN) (L) listens to Sen. Jim Webb (D-VA) during a confirmation hearing before the Senate Foreign Relations Committee for Ambassador Ryan Crocker June 8, 2011 on Capitol Hill in Washington, DC. Crocker, who was ambassador to Iraq from 2007 to 2009, will become ambassador to Afghanistan if confirmed.

Senate Financial Services Committee members Sen. Bob Corker (R-TN) (L) and Sen. Richard Shelby (R-AL) hold a news conference about a proposed amendment to the financial services reform legislation before the Senate at the U.S. Capitol May 6, 2010 in Washington, DC. Senate Republicans are unified in the opposition to the bill and the powers it would give a proposed consumer protection agency within the Fed.

Senate Financial Services Committee members Sen. Bob Corker (R-TN) (L) and Sen. Richard Shelby (R-AL) hold a news conference about a proposed amendment to the financial services reform legislation before the Senate at the U.S. Capitol May 6, 2010 in Washington, DC. Senate Republicans are unified in the opposition to the bill and the powers it would give a proposed consumer protection agency within the Fed.

Republican Bob Corker Holds News Conference On Financial Rules

Bloomberg

Senator Bob Corker, a Republican from Tennessee, speaks during a news conference in Washington, D.C., U.S., on Thursday, March 11, 2010. Senate Banking Committee Chairman Christopher Dodd said he will release his version of legislation to overhaul financial rules, signaling that talks on a compromise with Corker have collapsed. Photographer: Andrew Harrer/Bloomberg via Getty Images

Senator Bob Corker, a Republican from Tennessee, speaks during a news conference in Washington, D.C., U.S., on Thursday, March 11, 2010. Senate Banking Committee Chairman Christopher Dodd said he will release his version of legislation to overhaul financial rules, signaling that talks on a compromise with Corker have collapsed. Photographer: Andrew Harrer/Bloomberg via Getty Images